Malicious PDF — malware analysis report

Static analysis result for SHA-256 f172e54df148de10…

MALICIOUS

PDF

417.8 KB Created: 2021-06-05 10:46:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 5977a3471e36057c6005a5471beba7aa SHA-1: 54be1fb0a777929914107a6fc6131743caaa5a6b SHA-256: f172e54df148de10a53149ffebe5d67ef8e8ae12f398386757318bf891158ca2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1204.002 Malicious Link

This PDF document exhibits characteristics of an advance-fee scam, using lures related to invoices, parcels, and potential callbacks. The presence of multiple external URIs, some pointing to compromised WordPress sites, suggests it is designed to lead the user to download a second-stage payload. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9640

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://allytemp.ru/uplcv?utm_term=ga+form+600+instructions+2020 PDF link annotation
    • https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/d43f26e66f10f5eb2645e3b846ef4978/32773593746.pdfIn PDF document text
    • http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b115e26292---57556540098.pdfIn PDF document text
    • http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/dlm98oaee7hdrps5l73gfe01m1/tumibezejesurul.pdfIn PDF document text
    • https://netshopnepal.com/userfiles/file/58776781481.pdfIn PDF document text
    • http://amuseonline.com/absite/userfiles/file/4677776739.pdfIn PDF document text
    • http://bazatalty.pl/wp-content/plugins/super-forms/uploads/php/files/9bc70effbb2025d3b1a9518d41d81745/78846937305.pdfIn PDF document text
    • https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/io7gl8n8hkfkr9e982mp6h8na3/nerevadili.pdfIn PDF document text
    • http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16082d92c8db9e---tilamabiko.pdfIn PDF document text
    • https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/ace1gpgenbq7aqve35pakeuc1l/gexinodibulajuvadokokam.pdfIn PDF document text
    • https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/d032c32ec5094098c6c525b081beb4fe/61205089772.pdfIn PDF document text
    • http://prttour.ca/FileData/ckfinder/files/20210605_E416A686E5CCF661.pdfIn PDF document text
    • http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb0d91e90cb---37228802810.pdfIn PDF document text
    • https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/038d9ll329ff2c6ft0lqr6k2fk/91521183841.pdfIn PDF document text
    • https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607165edbcc8a---16118797671.pdfIn PDF document text
    • http://aliceinformaticasrl.com/user/pages/87551095091.pdfIn PDF document text
    • http://atut-biuro.com/uploaded/file/27100900111.pdfIn PDF document text
    • https://frontiersneurophotonics.org/wp-content/plugins/formcraft/file-upload/server/content/files/1/160b51c1f133b9---bizufu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00063920.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63920 5452 bytes
SHA-256: 3a76af526a2826a3aa48c2c88ffbbdcb1bcde4cbf6ff6aa16845475ff638f5db
font_01_sfnt_off00064b97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64B97 12616 bytes
SHA-256: 948a6ff407372d2109ddacf9e2d5eb0f074c85fb66859d81fe9884b738479f06

Open this report in the interactive analyzer, or submit your own file for analysis.